Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2007 · 11 citations · 0 references
EngineeringOptical TestingSpace OpticPrecision NavigationOptical ArtifactsCalibrationSensor Confidence TestsGuidance SystemSystems EngineeringLaser-based SensorOptical SystemsInstrumentationFlight ValidationAutomatic NavigationTime-of-flight CameraOphthalmologyAircraft NavigationAutonomous NavigationOptical SensorsLaser SpeckleAerospace EngineeringEye TrackingProximity Operations Navigation
Testing of the Advanced Video Guidance Sensor (AVGS) used for proximity operations navigation on the Orbital Express ASTRO spacecraft exposed several unanticipated imaging system artifacts and aberrations that required correction to meet critical navigation performance requirements. Mitigation actions are described for a number of system error sources, including lens aberration, optical train misalignment, laser speckle, target image defects, and detector nonlinearity/noise characteristics. Sensor test requirements and protocols are described, along with a summary of test results from sensor confidence tests and system performance testing.